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88 lines
2.3 KiB
88 lines
2.3 KiB
// Boost.Range library |
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// |
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// Copyright Thorsten Ottosen, Neil Groves 2006 - 2008. Use, modification and |
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// distribution is subject to the Boost Software License, Version |
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// For more information, see http://www.boost.org/libs/range/ |
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// |
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#ifndef BOOST_RANGE_ADAPTOR_INDIRECTED_HPP |
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#define BOOST_RANGE_ADAPTOR_INDIRECTED_HPP |
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#include <boost/range/iterator_range.hpp> |
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#include <boost/iterator/indirect_iterator.hpp> |
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namespace boost |
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{ |
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namespace range_detail |
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{ |
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template< class R > |
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struct indirected_range : |
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public boost::iterator_range< |
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boost::indirect_iterator< |
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BOOST_DEDUCED_TYPENAME range_iterator<R>::type |
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> |
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> |
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{ |
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private: |
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typedef boost::iterator_range< |
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boost::indirect_iterator< |
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BOOST_DEDUCED_TYPENAME range_iterator<R>::type |
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> |
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> |
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base; |
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public: |
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explicit indirected_range( R& r ) |
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: base( r ) |
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{ } |
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}; |
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struct indirect_forwarder {}; |
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template< class InputRng > |
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inline indirected_range<InputRng> |
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operator|( InputRng& r, indirect_forwarder ) |
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{ |
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return indirected_range<InputRng>( r ); |
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} |
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template< class InputRng > |
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inline indirected_range<const InputRng> |
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operator|( const InputRng& r, indirect_forwarder ) |
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{ |
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return indirected_range<const InputRng>( r ); |
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} |
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} // 'range_detail' |
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using range_detail::indirected_range; |
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namespace adaptors |
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{ |
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namespace |
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{ |
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const range_detail::indirect_forwarder indirected = |
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range_detail::indirect_forwarder(); |
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} |
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template<class InputRange> |
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inline indirected_range<InputRange> |
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indirect(InputRange& rng) |
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{ |
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return indirected_range<InputRange>(rng); |
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} |
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template<class InputRange> |
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inline indirected_range<const InputRange> |
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indirect(const InputRange& rng) |
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{ |
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return indirected_range<const InputRange>(rng); |
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} |
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} // 'adaptors' |
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} |
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#endif
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